Cylindrical workpiece four-hole punching equipment

Abstract

The utility model belongs to the technical field of tubular workpiece multi-hole punching equipment, and particularly relates to tubular workpiece four-hole punching equipment. The cylindrical workpiece four-hole punching equipment comprises an equipment base, a punching platform is arranged above the equipment base, a plurality of supporting columns are arranged at the bottom of the punching platform, and the bottoms of the supporting columns are fixedly connected with the equipment base; a first movable platform is arranged between the stamping platform and the equipment base, and the multiple supporting columns penetrate through the first movable platform from top to bottom. A plurality of ejector cylinders are arranged at the equipment base, ejector pin assemblies are arranged at the tops of the ejector cylinders, the longitudinal axes of the ejector pin assemblies coincide with the longitudinal axis of the workpiece fixing assembly, and the ejector pin assemblies are located under the workpiece fixing assembly; a workpiece grabbing frame is arranged on the upper surface of the stamping platform, and a carrying device is arranged on the workpiece grabbing frame.

Description

Technical Field

[0001] The utility model belongs to the technical field of multi-hole punching equipment for cylindrical workpieces, and in particular relates to equipment for punching four holes in a cylindrical workpiece. Background Art

[0002] Punching of cylindrical workpieces is a metalworking process that is usually used to create holes in cylindrical materials such as metal tubes or pipes. This process is critical in many industrial applications, such as in the manufacture of automobile exhaust pipes, hydraulic lines, pressure vessels and many other types of mechanical parts. Punching of cylindrical workpieces includes single punching and continuous punching. Single punching: only one hole can be punched at a time, which is suitable for small batch production or situations with high precision requirements; continuous punching: multiple holes can be punched in one stroke, which is suitable for mass production. When punching multiple holes, it is necessary to ensure that the relative position between different punching holes is accurate. Punching single holes one by one is difficult to control the relative position of the punching holes. When performing four-hole punching, a high-precision punching machine is often used with a single-hole punching die to punch the product. During the stamping process, a product needs to be punched 4 times and rotated three times. Because the angle is rotated manually, the angle is not very accurate. Sometimes there are missed punching, multiple punching, or large angle deviation, resulting in a high defective rate of the workpiece.

[0003] In order to ensure that the relative positions of the punching holes are relatively accurate when punching four holes, the utility model hopes to provide a device for punching four holes simultaneously, that is, a device for punching four holes in a cylindrical workpiece. Utility Model Content

[0004] The utility model aims to provide a device for punching four holes in a cylindrical workpiece to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A device for punching four holes in a cylindrical workpiece, comprising a device base, a stamping platform is provided above the device base, a plurality of support columns are provided at the bottom of the stamping platform, and the bottoms of the plurality of support columns are fixedly connected to the device base; a movable platform 1 is provided between the stamping platform and the device base, and the plurality of support columns all pass through the movable platform 1 from top to bottom; a hydraulic cylinder is provided at the device base, the hydraulic cylinder is connected to the movable platform 1, and the hydraulic cylinder pushes the movable platform 1 to move up and down; two stamping stations are provided on the upper surface of the stamping platform, each of the stamping stations comprises a workpiece fixing component and four stamping components, and the four stamping components are evenly distributed in a circular array with the workpiece fixing component as the center. ; The stamping assembly includes a stamping slide rail, a stamping head and a stamping seat, the stamping head and the stamping seat are fixedly connected, and the stamping seat is provided with an inclined track; the upper surface of the movable platform is provided with a plurality of vertical push rods, and the plurality of vertical push rods correspond to the stamping seats one by one, and the top side of the vertical push rod is provided with a horizontal connecting rod, and the horizontal connecting rod is inserted into the inclined track of the corresponding stamping seat; the equipment base is provided with a plurality of top cylinders, and the top of the top cylinder is provided with an ejector assembly, the longitudinal axis of the ejector assembly coincides with the longitudinal axis of the workpiece fixing assembly, and the ejector assembly is located directly below the workpiece fixing assembly; the upper surface of the stamping platform is provided with a workpiece grabbing frame, and the workpiece grabbing frame is provided with a handling device.

[0007] Preferably, a movable platform 2 is provided between the stamping platform and the equipment base, the movable platform 2 is connected to the ejector cylinder, and the ejector pin assembly is fixed to the movable platform 2 and the ejector cylinder at the same time.

[0008] Preferably, the ejector pin assembly comprises a plurality of ejector pins, and the plurality of ejector pins of the same ejector pin assembly are evenly arranged in a circular array.

[0009] Preferably, the workpiece fixing assembly comprises a columnar stamping die, a side of the columnar stamping die is provided with four stamping holes, the four stamping holes are located at the same horizontal height, and the four stamping holes are evenly distributed on the surface of the columnar stamping die in a circular array.

[0010] Preferably, the stamping platform is provided with a plurality of vertical through holes, and the vertical push rods pass through the vertical through holes one by one.

[0011] Preferably, a plurality of adjustable supporting feet are provided at the bottom of the equipment base.

[0012] Preferably, the lower end of the inclined track is close to the workpiece fixing assembly, and the upper end of the inclined track is far away from the workpiece fixing assembly.

[0013] Preferably, the plurality of stamping slide rails are evenly distributed radially around the corresponding workpiece fixing assembly.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) The utility model provides a device for punching four holes in a cylindrical workpiece. The movable platform 1 is pushed up and down by a hydraulic cylinder. When the movable platform 1 moves upward, the horizontal connecting rod cooperates with the inclined track, and the four punching heads are pushed by the punching seat to move toward the workpiece fixing assembly to complete the four-hole punching. When the movable platform 1 is moved downward, the four punching heads are driven by the punching seat to return to their original positions. During the downward movement of the movable platform 1, the ejector cylinder starts to work, causing the ejector pin assembly to move upward, ejecting the punched workpiece out of the workpiece fixing assembly, and at the same time, the handling device takes the processed workpiece out of the workpiece fixing assembly.

[0016] (2) The utility model provides a cylindrical workpiece punching four-hole device, wherein a movable platform 2 is provided between the punching platform and the device base. The existence of the movable platform 2 can enhance the movement stability of the ejector assembly and the vertical push rod; the vertical push rod passes through the vertical through hole, which also enhances the movement stability of the vertical push rod;

[0017] (3) The utility model provides a device for punching four holes in a cylindrical workpiece, wherein the ejector assembly includes a plurality of ejectors, which can effectively prevent the workpiece from tilting when ejecting the workpiece, and the workpiece is not easily captured by the handling device after being tilted. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a top view of the punching platform of the utility model;

[0020] In the figure: 1. Equipment base; 2. Stamping platform; 3. Support column; 4. Movable platform 1; 5. Hydraulic cylinder; 6. Stamping station; 7. Workpiece fixing assembly; 8. Stamping assembly; 9. Columnar stamping die; 10. Stamping hole; 11. Stamping slide rail; 12. Stamping head; 13. Stamping seat; 14. Oblique track; 15. Vertical push rod; 16. Horizontal connecting rod; 17. Ejector cylinder; 18. Ejector assembly; 19. Ejector; 20. Workpiece grabbing frame; 21. Handling device; 22. Movable platform 2; 23. Vertical perforation; 24. Support foot. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] A device for punching four holes in a cylindrical workpiece includes a device base 1. A stamping platform 2 is provided above the device base 1, and four support columns 3 are provided at the bottom of the stamping platform 2. The stamping platform 2 and the device base 1 are fixedly installed by the four support columns 3. A movable platform 4 is provided between the stamping platform 2 and the device base 1, and the four support columns 3 all pass through the movable platform 4 from top to bottom, and the movable platform 4 can move up and down stably along the four support columns 3. In order to provide driving force for the movable platform 4, a hydraulic cylinder 5 is provided at the device base 1, and the hydraulic cylinder 5 is connected to the movable platform 4, and the hydraulic cylinder 5 pushes the movable platform 4 to move up and down. The movement of the movable platform 4 can provide power for the stamping of the device.

[0023] Two stamping stations 6 are provided on the upper surface of the stamping platform 2, and each stamping station 6 includes a workpiece fixing assembly 7 and four stamping assemblies 8. The four stamping assemblies 8 are weighted by the workpiece fixing assembly 7 and are evenly distributed around the workpiece fixing assembly 7 in a circular array. The workpiece fixing assembly 7 includes a columnar stamping die 9, and four stamping holes 10 are provided on the side of the columnar stamping die 9, and the four stamping holes 10 are all located at the same horizontal height. The four stamping holes 10 are evenly distributed on the surface of the columnar stamping die 9 in a circular array, corresponding to the four stamping assemblies 8 one by one. The stamping assembly 8 includes a stamping slide 11, a stamping head 12 and a stamping seat 13, and the stamping head 12 is fixedly connected to the stamping seat 13. The stamping seat 13 is arranged on the stamping slide 11, and the stamping seat 13 can slide on the stamping slide 11. In each stamping station 6, the four stamping slides 11 are evenly distributed around the workpiece fixing assembly 7 in a radial shape. When the four punching heads 12 in a punching station 6 all move toward the workpiece fixing assembly 7 along with the corresponding punching seats 13, four-hole punching can be achieved on the workpiece.

[0024] In order to provide power to the stamping assembly, an inclined track 14 is provided at the stamping seat 13, the lower end of the inclined track 14 is close to the workpiece fixing assembly 7, and the upper end of the inclined track 14 is close to the workpiece fixing assembly 7. Correspondingly, eight vertical push rods 15 are provided on the upper surface of the movable platform 4, and the eight vertical push rods 15 correspond to the eight stamping seats 13 of the two stamping stations 6 respectively. A horizontal connecting rod 16 is provided on the top side of the vertical push rod 15, and the horizontal connecting rod 16 is inserted into the inclined track 14 of the corresponding stamping seat 13. When the movable platform 4 moves upward, the vertical push rod 15 moves upward at the same time, pushing the horizontal push rod 16 to move vertically upward. At this time, the four stamping seats 13 of the same stamping assembly 8 move toward the workpiece fixing assembly 7 to complete a four-hole stamping.

[0025] In order to load and unload the workpiece, two ejector cylinders 17 are provided at the equipment base 1, and the two ejector cylinders 17 correspond to the two stamping stations 6 respectively. An ejector pin assembly 18 is provided at the top of the ejector cylinder 17, and the longitudinal axis of the ejector pin assembly 18 coincides with the longitudinal axis of the workpiece fixing assembly 7. The ejector pin assembly 18 is located directly below the workpiece fixing assembly 7, so that the ejector pin assembly 18 can eject the workpiece from the workpiece fixing assembly 7. The ejector pin assembly 18 includes a plurality of ejectors 19, and the plurality of ejectors 19 of the same ejector pin assembly 18 are evenly distributed in a circular array. When the ejector pin assembly 18 ejects the workpiece from the workpiece fixing assembly 7, the workpiece can be kept as horizontal as possible. A workpiece grabbing frame 20 is provided on the upper surface of the stamping platform 2, and a conveying device 21 is provided at the workpiece grabbing frame 20, and the conveying device 21 unloads and replaces the workpiece.

[0026] In order to enhance the stability of the vertical push rod 15, the ejector assembly 18 and other components, a movable platform 22 is provided between the stamping platform 2 and the equipment base 1, the movable platform 22 is connected to the ejector cylinder 17, and the ejector assembly 18 is fixed to the movable platform 22 and the ejector cylinder 17 at the same time. At the same time, eight vertical through holes 23 are provided at the stamping platform 2, and the vertical push rods 15 pass through the vertical through holes 23 one by one, which greatly improves the stability of the vertical push rods 15. Four adjustable support feet 24 are provided at the bottom of the equipment base 1, and the four adjustable support feet 24 can adjust the horizontal position of the device.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for punching four holes in a cylindrical workpiece, characterized in that: It includes an equipment base, a stamping platform is provided above the equipment base, a plurality of support columns are provided at the bottom of the stamping platform, and the bottoms of the plurality of support columns are fixedly connected to the equipment base; a movable platform 1 is provided between the stamping platform and the equipment base, and the plurality of support columns all pass through the movable platform 1 from top to bottom; a hydraulic cylinder is provided at the equipment base, and the hydraulic cylinder is connected to the movable platform 1, and the hydraulic cylinder pushes the movable platform 1 to move up and down; two stamping stations are provided on the upper surface of the stamping platform, and each of the stamping stations includes a workpiece fixing component and four stamping components, and the four stamping components are evenly distributed in a ring array with the workpiece fixing component as the center; the stamping components The parts include a stamping slide rail, a stamping head and a stamping seat, the stamping head and the stamping seat are fixedly connected, and the stamping seat is provided with an inclined track; the upper surface of the movable platform is provided with a plurality of vertical push rods, and the plurality of vertical push rods correspond to the stamping seats one by one, and the top side of the vertical push rod is provided with a horizontal connecting rod, and the horizontal connecting rod is inserted into the inclined track of the corresponding stamping seat; the equipment base is provided with a plurality of top cylinders, and the top of the top cylinder is provided with an ejector assembly, the longitudinal axis of the ejector assembly coincides with the longitudinal axis of the workpiece fixing assembly, and the ejector assembly is located directly below the workpiece fixing assembly; the upper surface of the stamping platform is provided with a workpiece grabbing frame, and the workpiece grabbing frame is provided with a handling device.

2. The four-hole punching device for a cylindrical workpiece according to claim 1, characterized in that: A movable platform 2 is arranged between the stamping platform and the equipment base, the movable platform 2 is connected to the ejector cylinder, and the ejector pin assembly is fixed to the movable platform 2 and the ejector cylinder at the same time.

3. The four-hole punching device for a cylindrical workpiece according to claim 1, characterized in that: The ejector pin assembly comprises a plurality of ejector pins, and the plurality of ejector pins of the same ejector pin assembly are evenly arranged in a circular array.

4. The apparatus for punching four holes in a cylindrical workpiece according to claim 1, characterized in that: The workpiece fixing assembly comprises a columnar stamping die, and four stamping holes are arranged on the side of the columnar stamping die. The four stamping holes are located at the same horizontal height, and the four stamping holes are evenly distributed on the surface of the columnar stamping die in a circular array.

5. The four-hole punching device for a cylindrical workpiece according to claim 1, characterized in that: The stamping platform is provided with a plurality of vertical through holes, and the vertical push rods pass through the vertical through holes one by one.

6. The apparatus for punching four holes in a cylindrical workpiece according to claim 1, characterized in that: A plurality of adjustable supporting feet are arranged at the bottom of the equipment base.

7. The four-hole punching device for a cylindrical workpiece according to claim 1, characterized in that: The lower end of the inclined track is close to the workpiece fixing assembly, and the upper end of the inclined track is far away from the workpiece fixing assembly.

8. The four-hole punching device for a cylindrical workpiece according to claim 1, characterized in that: The plurality of stamping slide rails are evenly distributed radially around the corresponding workpiece fixing components.

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